MSc Chemistry (Organic And Analytical) SEM III CHEMISTRY ANALYTICAL CHEMISTRY Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 All questions are compulsory
2. Q2 Figures to the right indicate full marks
3. Q3 Use of logarithmic table/non-programmable calculator is allowed
4. Q4 At. Wts: H=1, C=12, N=14, O=16, Na=23, Al=27, S=32, Cl=35.5, K=39, Ca=40, Answer any TWO of the following: (8)
   • a. What is meant by Six Sigma? Explain in detail the Six Sigma responsibility
   • b. Write a short note on the importance of safety in laboratories and discuss the terms PPE, OSHA, Toxic Hazard (TH)
   • c. responsibilities of a laboratory staff to maintain the quality system of the laboratory
   • d. Distinguish between accuracy and precision with respect to the measured B Answer any ONE of the following: (4)
   • a. With respect to the performance characteristics of an instrument explain the
   • b. With respect to the performance criteria of an analytical instrument discuss the following terms: & what are the advantages of analytical sensitivity? Answer any TWO of the following: (8)
   • a. (i) Determine oxidation number of Cl in and in
   • (ii) Solid is dissolved in water at Its solubility is 1.25 x Calculate the solubility product ( Ksp) of the compound
   • b. Calculate the amount of ( density =1.84 g/cm? , 98% by weight) required to prepare 1 of 3N
   • c. 161g of Ethanol and 145 g of Acetone are mixed together. Find the mole fraction of each compound in the mixture
   • d. 21.7 cm? of a solution of required 45.8 cm? of 0.25 M HCI for
   • a. Write the reaction involved
   • b. What is the molarity of the Ca (OH) Solution B Answer any ONE of the following: (4)
   • a. much volume of 1000 ppm K* solution, prepared using KCl , is required to prepare 100 cm? of 0.02 M KCI solution
   • b. Calculate the weight of compound required to prepare 500 cm? of a50 ppm
   • (i) (ii) Answer any TWO of the following: (8)
   • a. With the help of schematic diagram, explain the working of Michaelson interferometer in FTIR
   • b. the charge transfer absorption with respect to UV and Visible
   • c. Discuss the different techniques for preparation of solid samples for IR
   • d. Discuss:
   • i. Optical arrangement of a dual wavelength spectrophotometer Photoconducting transducers used in IR spectrometer B Answer any ONE of the following: (4)
   • a. Simultaneous determination of solutions containing ions A and B spectrophotometrically at two different wavelengths gave the following Calculate the molar concentration of A and B in a mixture of solution containing both the ions
   • b. the fiber optics used in optical instruments
5. Q4 A_ Answer any TWO of the following: 8 marks
   • b. With the block diagram, discuss the instrumentation of power compensated
   • c. Describe the role of multilayered films in automated analysis
   • d. Discuss the application of DSC in :
   • i) analysis of polyethylene for its crystallinity
   • ii) in drug analysis B Answer any ONE of the following: (4)
   • a. Discuss the factors affecting DSC curves
   • b. are discrete automatic systems? Discuss any one application of Answer any FOUR of the following: (12)
   • a. What is the need for laboratory accreditation? Discuss the Indian Standard Write in brief about the determinate errors and the ways to minimize them
   • c. A solution of is prepared by dissolving 1584 mg in distilled water to make up 750 Calculate the concentration of the solution in terms of
   • d. Calculate the amount of formed when a solution containing 2.00 g of is reacted with a solution containing 3.00 g of Which is the
   • e. What is diffuse reflectance spectroscopy? Explain the diffuse reflectance
   • f. | What are the advantages of an FTIR over dispersive instruments?
   • g. Name the different types of thermal methods and discuss any one of the
   • h. What is an automatic titrator? What are the benefits of using automatic

Read from the scan above, so a character or two may differ. The scan is the original.